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BR112013022923A8 - TRANSFORM COEFFICIENT CODING FOR VIDEO CODING - Google Patents

TRANSFORM COEFFICIENT CODING FOR VIDEO CODING

Info

Publication number
BR112013022923A8
BR112013022923A8 BR112013022923A BR112013022923A BR112013022923A8 BR 112013022923 A8 BR112013022923 A8 BR 112013022923A8 BR 112013022923 A BR112013022923 A BR 112013022923A BR 112013022923 A BR112013022923 A BR 112013022923A BR 112013022923 A8 BR112013022923 A8 BR 112013022923A8
Authority
BR
Brazil
Prior art keywords
coding
transform coefficients
scan order
video
transform
Prior art date
Application number
BR112013022923A
Other languages
Portuguese (pt)
Other versions
BR112013022923A2 (en
Inventor
Sole Rojals Joel
L Joshi Rajan
Karczewicz Marta
Original Assignee
Velos Media Int Ltd
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=46795578&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR112013022923(A8) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Velos Media Int Ltd, Qualcomm Inc filed Critical Velos Media Int Ltd
Publication of BR112013022923A2 publication Critical patent/BR112013022923A2/en
Publication of BR112013022923A8 publication Critical patent/BR112013022923A8/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/167—Position within a video image, e.g. region of interest [ROI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/18—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/436—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • H04N19/619—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding the transform being operated outside the prediction loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

CODIFICAÇÃO DE COEFICIENTES DE TRANSFORMADA PARA CODIFICAÇÃO DE VÍDEO. Esta invenção descreve técnicas para codificar coeficientes de transformada associados a um bloco de dados de vídeo residuais em um processo de codificação de vídeo. Os aspectos desta invenção incluem a seleção de uma ordem de varredura para a codificação de mapas de significância e para a codificação de níveis, assim como a seleção de contextos para codificação por entropia em conformidade com a ordem de varredura selecionada. Esta invenção propõe uma harmonização da ordem de varredura para codificar o mapa de significância dos coeficientes de transformada, assim como, os níveis dos coeficientes de transformada. É proposto que a ordem de varredura para o mapa de significância esteja na direção inversa (isto é, das frequências mais altas para as frequências mais baixas). Esta invenção propõe também que os coeficientes de transformada sejam varridos em subconjuntos em oposição a sub-blocos fixos. Em particular, os coeficientes de transformada são varridos em um subconjunto que consiste de vários coeficientes consecutivos de acordo com a ordem de varredura.TRANSFORM COEFFICIENT COEFFICIENT FOR VIDEO CODING. This invention describes techniques for encoding transform coefficients associated with a residual video data block in a video encoding process. Aspects of this invention include selecting a scan order for coding significance maps and for coding levels, as well as selecting contexts for entropy coding in accordance with the selected scan order. This invention proposes a harmonization of the scan order to encode the significance map of the transform coefficients, as well as the levels of the transform coefficients. It is proposed that the scan order for the significance map is in the reverse direction (ie, from higher frequencies to lower frequencies). This invention also proposes that transform coefficients be swept in subsets as opposed to fixed sub-blocks. In particular, the transform coefficients are scanned into a subset consisting of several consecutive coefficients according to the scanning order.

BR112013022923A 2011-03-08 2012-03-07 TRANSFORM COEFFICIENT CODING FOR VIDEO CODING BR112013022923A8 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US201161450555P 2011-03-08 2011-03-08
US201161451485P 2011-03-10 2011-03-10
US201161451496P 2011-03-10 2011-03-10
US201161452384P 2011-03-14 2011-03-14
US201161494855P 2011-06-08 2011-06-08
US201161497345P 2011-06-15 2011-06-15
US13/413,526 US10397577B2 (en) 2011-03-08 2012-03-06 Inverse scan order for significance map coding of transform coefficients in video coding
PCT/US2012/028093 WO2012122284A1 (en) 2011-03-08 2012-03-07 Coding of transform coefficients for video coding

Publications (2)

Publication Number Publication Date
BR112013022923A2 BR112013022923A2 (en) 2016-12-06
BR112013022923A8 true BR112013022923A8 (en) 2018-02-14

Family

ID=46795578

Family Applications (3)

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BR112013023035A BR112013023035A8 (en) 2011-03-08 2012-03-07 TRANSFORM COEFFICIENT CODING FOR VIDEO CODING
BR112013022923A BR112013022923A8 (en) 2011-03-08 2012-03-07 TRANSFORM COEFFICIENT CODING FOR VIDEO CODING
BR112013022914A BR112013022914A8 (en) 2011-03-08 2012-03-07 TRANSFORM COEFFICIENT CODING FOR VIDEO CODING

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Country Status (15)

Country Link
US (7) US20120230418A1 (en)
EP (5) EP2684360A1 (en)
JP (6) JP5864625B2 (en)
KR (4) KR101566602B1 (en)
CN (6) CN103477638B (en)
AU (4) AU2012225463A1 (en)
BR (3) BR112013023035A8 (en)
CA (4) CA2828586C (en)
IL (4) IL228020A (en)
MX (1) MX343708B (en)
MY (7) MY166625A (en)
RU (4) RU2571509C2 (en)
SG (4) SG192873A1 (en)
TW (1) TWI484830B (en)
WO (4) WO2012122275A1 (en)

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